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assisted reproductive technology

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https://www.readbyqxmd.com/read/28525345/in-vitro-production-of-sudanese-camel-camelus-dromedarius-embryos-from-epididymal-spermatozoa-and-follicular-oocytes-of-slaughtered-animals
#1
A E Abdelkhalek, Sh A Gabr, W A Khalil, Sh M Shamiah, L Pan, G Qin, M H Farouk
Application of assisted reproductive technology in camelidea, such as artificial insemination (AI) and embryo transfer, has been slow in comparison to that for other livestock species. In Egypt, there are few attempts to establish in vitro maturation (IVM) and fertilization (IVF) techniques in dromedary camel. The present study was carried out to produce Sudanese camel embryos using in vitro matured oocytes and epididymal spermatozoa. Dromedary camel ovaries were collected from abattoirs and then, the oocytes were aspirated from all the visible follicles on the ovarian surface (~2-8 mm in a diameter)...
March 28, 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/28523429/kir-lilrb-and-their-ligands-genes-as-potential-biomarkers-in-recurrent-implantation-failure
#2
REVIEW
Izabela Nowak, Karolina Wilczyńska, Jacek R Wilczyński, Andrzej Malinowski, Paweł Radwan, Michał Radwan, Piotr Kuśnierczyk
Reproductive failure in humans is a very important social and economic problem, because nowadays women decide to conceive later in life and delay motherhood. Unfortunately, with increasing age they have less chance for natural fertilization and maintenance of pregnancy. Many of them need assisted reproductive technology. Approximately 10% of women after in vitro fertilization-embryo transfers experience recurrent implantation failure (RIF). Multiple factors may contribute to RIF, including oocyte and sperm quality, parental chromosomal anomalies, genetic or metabolic abnormalities of the embryo, poor uterine receptivity, immunological disturbances in the implantation site, and some gynecologic pathologies such as endometriosis, uterine fibroids, hydrosalpinx and endometrial polyps...
May 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28523019/use-of-the-internet-related-to-infertility-by-infertile-women-and-men-in-turkey
#3
Duygu Gulec Satir, Oya Kavlak
OBJECTIVE: To determine differences in use of the Internet related to infertility between infertile women and men, whether they benefit or are negatively affected from information on the Internet, and share this information with health professional. METHODS: This cross-sectional study was carried out with 285 infertile women and 158 men between December 2015 and February 2016. Data were collected by a survey Form which included questions related to sociodemographic characteristics, related to infertility (duration of treatment, type of treatment) and questions about use of the Internet...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28521685/weighing-the-impact-of-diet-and-lifestyle-on-female-reproductive-function
#4
Gabriella Garruti, Raffaella De Palo, Maria De Angelisc
In the last years several scientific societies and expert groups focused on the role played by nutritional factors, lifestyle and excess of body fat in interfering with female reproduction and fertility. In many studies a confounding factor is represented by polycystic ovary syndrome (PCOS) which is one of the major causes of infertility where genetic and family factors are certainly playing a role, together with lifestyle and nutritional factors. In an attempt to define "the optimal fertility diet", we will consider the role played by Mediterranean lifestyle and some macronutrients (animal and vegetable proteins) on ovulatory disorders and female fertility also considering some new visions derived from randomized trials of Lifestyle programs in obese Infertile women asking for in vitro fertilization or alternative assisted reproduction technologies...
May 17, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28520723/follicular-size-predicts-success-in-artificial-insemination-with-frozen-thawed-sperm-in-donkeys
#5
Joseph Saragusty, Alemayehu Lemma, Thomas Bernd Hildebrandt, Frank Göritz
In asses, semen collection, cryopreservation, and artificial insemination (AI) with frozen-thawed semen have been scarcely described and success rate, particularly following AI, is reportedly low. In the absence of reliable protocols, assisted reproductive technologies cannot support the conservation efforts aimed at endangered wild ass species and domestic donkey breeds. Two experiments were conducted in this study. In experiment 1 we evaluated freezing Abyssinian donkey (N = 5, 4 ejaculates each) spermatozoa using three freezing extenders (Berliner Cryomedium + glycerol, BC+G; BotuCrio, BOTU; INRAFreeze, INRA) and two cryopreservation techniques (liquid nitrogen vapour, LNV; directional freezing, DF)...
2017: PloS One
https://www.readbyqxmd.com/read/28515223/associations-between-male-reproductive-characteristics-and-the-outcome-of-assisted-reproductive-technology-art
#6
Zhangshun Liu, Xiaohong Shi, Lihong Wang, Yan Yang, Qiang Fu, Minfang Tao
This study was designed to investigate the relationships between indicators of male body-mass index (BMI), age, reproductive hormone levels, semen parameters and the outcomes of assisted reproductive technology (ART). The clinical data were collected from 636 couples who underwent ART at the reproductive center involved in our study. Pearson's correlation or Spearman rank correlation was applied to establish the relevant correlation coefficients. The correlation between influence factors' and pregnancy outcomes was analyzed using the Logistic regression model...
May 17, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28514122/-is-anti-thrombotic-prophylaxis-warranted-in-fertility-and-in-vitro-fertilization-treatments
#7
REVIEW
Enav Yefet, Amir Weiss
INTRODUCTION: Assisted reproductive technology (ART) treatments are potential risk factors for thromboembolism (TE) due to excessive estrogen levels. Recently, several studies have shed new light on this matter. AIMS: To review the literature to assess the risk for TE during ART and to establish guidelines regarding thrombophylaxis. METHODS: A search was conducted of PubMed, Medline, Cochrane and clinicaltrials.gov. The search terms were fertility, assisted reproductive technology, IVF, thromboembolism, thrombosis and anticoagulation...
July 2016: Harefuah
https://www.readbyqxmd.com/read/28508683/effectiveness-of-mild-ovarian-stimulation-versus-gnrh-agonist-protocol-in-women-undergoing-assisted-reproductive-technology-a-meta-analysis
#8
Yuan Fan, Xiaowei Zhang, Zhidong Hao, Huanfei Ding, Quanyu Chen, Li Tian
OBJECTIVE: our meta-analysis was conducted to evaluate the effectiveness of the mild ovulation induction protocol using CC/gonadotropin/GnRH antagonist compared to the conventional GnRH agonist protocol in women undergoing ART. METHOD: Six electronic databases were searched from their date of establishment until August 2016. Outcomes in our analysis were calculated in terms of relative risk (RR) and weighted mean differences (WMD) and standard mean differences (SMD) with 95% confidence intervals (CI) using random effect models or fixed effect models...
May 16, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28508519/fetal-cardiac-remodeling-in-twin-pregnancies-conceived-by-assisted-reproductive-technologies
#9
Brenda Valenzuela-Alcaraz, Mónica Cruz-Lemini, Mérida Rodríguez-López, Ana Goncé, Laura García-Otero, Helena Ayuso, Marta Sitges, Bart Bijnens, Juan Balasch, Eduard Gratacós, Fátima Crispi
BACKGROUND: Recent data suggest that singleton fetuses conceived by assisted reproductive technologies (ART) present cardiovascular remodeling that may persist postnatally. Twin pregnancies are more frequent in the ART population, and are associated with increased adverse perinatal outcomes like hypertensive disorders, gestational diabetes and preterm birth. However, it is unknown whether cardiac remodeling is also present in twin pregnancies conceived by ART. Our aim was to assess the presence of fetal cardiac remodeling and dysfunction in twin pregnancies conceived by ART, as compared to spontaneously conceived (SC) ones...
May 15, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28505936/re-relationship-between-paternal-somatic-health-and-assisted-reproductive-technology-outcomes
#10
Craig Niederberger
No abstract text is available yet for this article.
June 2017: Journal of Urology
https://www.readbyqxmd.com/read/28494823/an-introduction-to-epigenetics
#11
Maria Andria Barbara, Ylenia Abdilla
Epigenetics refers to the heritable information that is exclusive of DNA. Several syndromes have been found to occur as the result of the process of epigenetics. This process causes changes in the expression of genes, without changing the actual DNA sequence. The factors influencing this process include both internal and external triggers, leading to modulation of the epigenome through different mechanisms. This article aims to describe how the process of epigenetics gives rise to the multitude of possible syndromes seen in neonates...
May 1, 2017: Neonatal Network: NN
https://www.readbyqxmd.com/read/28490359/cryopreservation-of-reproductive-material-before-cancer-treatment-a-qualitative-study-of-health-care-professionals-views-about-ways-to-enhance-clinical-care
#12
Karin Hammarberg, Maggie Kirkman, Catharyn Stern, Robert I McLachlan, Debra Gook, Luk Rombauts, Beverley Vollenhoven, Jane R W Fisher
BACKGROUND: Cancer treatment can diminish fertility in women and men. The need for fertility preservation is growing as increasing numbers of people survive cancer. Cryostorage of reproductive material to preserve potential for conception for cancer survivors has moved from being experimental to being a part of clinical management of women and men who are diagnosed with cancer in their reproductive years. There is little existing evidence about how fertility preservation services can be enhanced to meet the complex needs of patients who are diagnosed with cancer in their reproductive years...
May 10, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28490169/ethical-considerations-in-the-field-of-assisted-reproductive-technology
#13
Lindsey N Cobb, Raymond W Ke
Human reproduction has always generated more than its share of emotion that exceeds the life and death issues of medicine. For patients that are unable to conceive naturally, medical advances have greatly expanded treatment options. Assisted reproductive technology (ART) is a highly evolving, complex, and controversial field of medicine in which ethical principles play a large role in decision-making. The following highlights ethical considerations regarding ART, specifically in vitro fertilization (IVF), that practicing obstetricians and indeed all physicians may encounter...
May 8, 2017: Minerva Endocrinologica
https://www.readbyqxmd.com/read/28488761/apoptotic-sperm-biomarkers-and-the-correlation-between-conventional-sperm-parameters-and-clinical-characteristics
#14
R Hichri, H Amor, M Khammari, M Harzallah, S El Fekih, A Saad, M Ajina, H Ben Ali
The principal aim of this retrospective study was to examine the relationship between sperm apoptotic biomarkers and the patient's biclinical characteristics, the conventional sperm parameters and the results of assisted reproductive technology. Sperm analysis, activated caspases, annexin V staining for phosphatidylserine (PS) externalisation and labelling assay for DNA fragmentation were assessed in 122 males of infertile couples. Fifty-seven couples were allocated to the natural conception group, and 65 couples underwent IVF or ICSI...
May 10, 2017: Andrologia
https://www.readbyqxmd.com/read/28487032/preconception-assisted-reproductive-technology-counseling-in-the-age-of-zika
#15
EDITORIAL
Chantel I Washington Cross, James H Segars
No abstract text is available yet for this article.
May 6, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28486372/pregnancy-outcomes-after-fertility-preservation-in-transgender-men
#16
Susan Maxwell, Nicole Noyes, David Keefe, Alan S Berkeley, Kara N Goldman
BACKGROUND: Transgender individuals, individuals whose gender identity does not align with their sex assigned at birth, undergoing gender-affirming hormonal or surgical therapies may experience loss of fertility. Assisted reproductive technologies have expanded family-building options for transgender men who were assigned female at birth. CASES: Three transgender men underwent oocyte cryopreservation before gender-affirming hormonal therapy. One patient underwent fertility preservation as an adolescent...
May 5, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28486370/maternal-racial-and-ethnic-disparities-in-neonatal-birth-outcomes-with-and-without-assisted-reproduction
#17
Sara Crawford, Nikhil Joshi, Sheree L Boulet, Marie A Bailey, Maria-Elena Hood, Susan E Manning, Patricia McKane, Russell S Kirby, Dmitry M Kissin, Denise J Jamieson
OBJECTIVE: To explore disparities in prematurity and low birth weight (LBW) by maternal race and ethnicity among singletons conceived with and without assisted reproductive technology (ART). METHODS: We performed a retrospective cohort study using resident birth certificate data from Florida, Massachusetts, and Michigan linked with data from the National ART Surveillance System from 2000 to 2010. There were 4,568,822 live births, of which 64,834 were conceived with ART...
May 5, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28483844/perinatal-outcomes-in-multifetal-pregnancy-following-fetal-reduction
#18
Neda Razaz, Tehila Avitan, Joseph Ting, Tracy Pressey, K S Joseph
BACKGROUND: There is currently insufficient evidence regarding the prognosis of multifetal pregnancy following elective fetal reduction to twin or singleton pregnancy. We compared perinatal outcomes in pregnancies with and without fetal reduction. METHODS: We used data on all stillbirths and live births in British Columbia, Canada, from 2009 to 2013. We compared outcomes of multifetal pregnancies with fetal reduction (to twin or singleton pregnancy) with outcomes of pregnancies without fetal reduction...
May 8, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28483504/introduction-immunology-and-assisted-reproductive-technology-in-the-21st-century
#19
REVIEW
Juan A Garcia-Velasco
In the past few years we have witnessed reproductive immunology taking a leading role after repeated implantation failure. We still face the problem of even euploid embryos that either fail to implant or are miscarried. These focused articles present the attending clinician with the most recent evidence to understand how immunology contributes to human reproduction, what can be done at the clinical level, and what is still an area for research and should not be offered to patients outside of a clinical research scenario...
May 5, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28480049/discrete-survival-model-analysis-of-a-couple-s-smoking-pattern-and-outcomes-of-assisted-reproduction
#20
Jose C Vanegas, Jorge E Chavarro, Paige L Williams, Jennifer B Ford, Thomas L Toth, Russ Hauser, Audrey J Gaskins
BACKGROUND: Cigarette smoking has been associated with worse infertility treatment outcomes, yet some studies have found null or inconsistent results. METHODS: We followed 225 couples who underwent 354 fresh non-donor assisted reproductive technology (ART) cycles between 2006 and 2014. Smoking history was self-reported at study entry. We evaluated the associations between smoking patterns and ART success using multivariable discrete time Cox proportional hazards models with six time periods: cycle initiation to egg retrieval, retrieval to fertilization, fertilization to embryo transfer (ET), ET to implantation, implantation to clinical pregnancy, and clinical pregnancy to live birth to estimate hazard ratios (HR) and 95% CIs...
2017: Fertility Research and Practice
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